A racing car accelerates uniformly from rest along a straight track. This track has markers spaced at equal distances along it from the start, as shown in the figure. The car reaches a speed of 120 km/h as it passes marker M4. Where on the track was the car when it was travelling at 60 km/h? M4 M3 M2 M1 start At M1 Between M1 and M2 At M2 Between M2 and M3
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Given: \(VF = 120 \, km/h\) (final velocity at the fourth market) \(V_0 = 0 \, km/h\) (initial velocity) \(s = 40\) (distance between each market) Plugging in the values: \(120^2 = 0 + 2a \cdot 40\) \(14400 = 80a\) \(a = 180 \, km/h^2\) Show more…
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